<template>
  <div id="app">
    <div>
      <span>姓名:</span>
      <input type="text" v-model="name"/>
    </div>
    <div>
      <span>年龄:</span>
      <input type="number" v-model="age"/>
    </div>
    <div>
      <span>性别:</span>
      <select v-model="sex">
        <option value="男">男</option>
        <option value="女">女</option>
      </select>
    </div>
    <div>
      <button @click="AddFn">添加/修改</button>
    </div>
    <div>
      <table
        border="1"
        cellpadding="10"
        cellspacing="0"
      >
        <tr>
          <th>序号</th>
          <th>姓名</th>
          <th>年龄</th>
          <th>性别</th>
          <th>操作</th>
        </tr>
        <tr v-for="(item,index) in list" :key="index">
          <td>{{index+1}}</td>
          <td>{{item.name}}</td>
          <td>{{item.age}}</td>
          <td>{{item.sex}}</td>
          <td>
            <button @click="del(index)">删除</button>
            <button @click="bianJ(item.id)">编辑</button>
          </td>
        </tr>
      </table>
    </div>
  </div>
</template>
<script>
export default {
  data() {
    return {
      name:'',
      age:'',
      sex:'男',
      flag:'',
      list:[
        {
          id:101,
          name:'xm',
          age:10,
          sex:'男'
        },
        {
          id:102,
          name:'lm',
          age:12,
          sex:'男'
        },
        {
          id:103,
          name:'zs',
          age:11,
          sex:'男'
        }
      ]
    }
  },
  methods:{
      AddFn() {
        //添加
           if (this.flag==='') {
            this.list.push({
              id:+new Date(),
              name:this.name,
              age:this.age,
              sex:this.sex
            })
           }else{
           this.flag.name=this.name
           this.flag.age=this.age
           this.flag.sex=this.sex
           }

         
              this.name='',
              this.age='',
              this.sex=''
      },
      del(index){
           this.list.splice(index,1)
      },
      bianJ(id) {
       const obj= this.list.find(item=>item.id=id)
       const {age,name,sex} =obj
          
              this.name=name,
              this.age=age,
              this.sex=sex

              this.flag=obj
      }
  }
}
</script>